Automatic train-stop.



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' ATTORNEY f C. A. EIB.

AUTOMA'HC TRAIN STOP.

APPucATloN FILED ocLe. 191s.

i Ll

Entented Apr. 27, 1915.

y 2 SHEETS-SHEET 2.

INVEN'KOR WITNES'SES i ATTORNEY sara lll . CHARLES e.. me, or Newenuivstvrcn, New JERSEY.

AUTGMTXC TRAN-SCP. v

.Specification of Iaettrsetent.

rali-.estad apr. er, isis.

Application mei coter e, isis, sensing. votre?. f

it may conce/Mi."

:noun that I, CHARLES A.: Ens, a n. of the Yinit-ed States, residing' atAlnwick, in ille county of lviddlesex anduseful utomatic Train-Stop, or:litlie following is a specilication.

'Alie invention relates to improvement-s in automatic trein stops.

The object of the present invention is to improve the construction ofautomatic train. stops, andto provide a simple, practical and elicienttrein stop of strong 'and durable construction adaptedto be easilyapplied to modern high speed compound locomotives vand other engines,and designed to be operated either independently of or in conjunctionwith the usual lliiain signals, and capable should an engineer attemptto pass a signal set against him of cutting olil the steam of the engineand applying the brakes7 Wherebytlie train will be brought to astandstil-.

A further object ol the invention is to provide `an automatic train stopoi this character, which will be beyond the control ot' tlie engineerand which after an operation will require an engineer to leave .liis

and manually reset the mechanism. Iinotlier object ot' the invention isto provide automatic i ain stop equipped with a track icej ivliicli willellectually prevent unauthorized persons from sur'eptitiousljfr movingit to its engaging position for stopping a train.

V/'Yitli these and other objects in view, the invention consists in theconstruction and novel combination of parts hereinafter' fullydescribed, illustrated ii the accompanying drawings. and poinLcd out inhereto appended; it being understood that various changes in the forni'gproportion,

size and minor details of constructionnvitl in the scope of 'the claims.may be resorted to without departing from the spirit or sac-4 with anauto L te of levv Ilersey, have invented the claims showing the trackdevice in its raised position. Fig. l is an enlarged vertical sectionalview oi the track device.`

Lilie numerals of reference designate corresponding parts in all thefigures of the drawings.

ln thel accompanying drawings in @which y is illustrated the preferredembodiment of the invention7 the automatic train stop comprises in itsconstruction a steam cylinder l preferably mounted in a verticalposition beneath the boiler 2 of a locomotive and bolted or otherwisesecured toa transverse supporting is attached to and depends from thebottom sheet 3. The supporting sheet 3 I of the boiler, but the steamcylinder may be mounted and arranged in any other preferred manner. Thesteam cylinder has a verticallymovable piston .il provided with a pistonrod 5 extending upwardly through a stuliing box 6 at the 'top of thecylinder and connected with a brake `operating lever i' ancl,.vvitlivalves and 9 arranged to cut of? the. tloiv of steam from the boileritothe cylinders of the locomotive to stop the operation of the lattersimultaneously with an application Olathe air brakes. The lever 7 whichis arranged in a horizontal position when the piston is at the lovverlimit of its travel, is pivotedat its front end l0 tothe upper end ot' avertical supporting arm ll and is suitably connected at an intermediatepointvvit-li the piston rod to permit a pivotal l inoveinent of theparts, and its rear end 1s y.

provided with an eye l2 to which is secured one end of an operating cord13, extending downwardly from the lever 7 and passing around the guidepulley'li and designed to extend to and connected with a suitable valveforreducing the pressure in the, train pipe for effecting an operationof the brakes.' Any suitable air valve may be employed for bleeding tlietrain pipe of the air brake system, and as the present invention is ap`plicable to various forms of valves7 a detail descriptionandillustration of a particular type of yvalve is deemed unnecessary., Thesupporting arm is suitably secured to' the stearn cylinder attheftop'thereof/andAvv projects 'upwardly tltereiroin. -Thc guide pulleylil is mounted in a bifurcation of a horizontal supporting arm orbracket l5, Wliicnis suitably secured'to the rear face of the supportingsheet 3.

The upper end ot' the piston is connected by a bolt 16 or other suitablepivot to the inner end ofia transversely disposedlever 17 fulcrumed atan intermediate point to. a fixed supporting arm 18 by a suitable pivot19 and connected at its outer terminal to the, rear end of a horizontalarm of a bell ,crank lever 20. The supporting arm 18 is secured' to theboiler of the' locomotive at one side` thereof and extends downwardlytherefrom, as clearly shown in Fig. 2 of the drawings, and the bellcranklever, which is fulcrumed L at its angle-on a Vsuitable pivot21,'has an upwardly extending*v arm 22 arranged in y approximately avertical positionand provided with a slot 23'inwhich operates asuitablelpin or pivot 24 for connecting the bell crankdever with adepending armf'25 of a valve rod or stem-26. The valve or stem' isprovidedv with. an outer'extension, to which the said depending arm25'is secured The bell crank lever is supported-by an .approximatelyU-shaped bracket 27 secured to the locomotive at one side thereofandhaving the said pivot 21 mounted on its outerv portion. Any othersuitable means may, of course, be employed for mounting the bell cranklever, and in practice the con-- nections between the steam cylinder 1and the valve or valvesof the steam conduit 28 of the locomotive willbemounted and arranged to suit vthe type of locomotive to which theautomatic train pipe is applied. In the locomotive illustrated in theaccompanying drawings, the steam conduit 28 is provided at the frontwith two branches 29 leading to the steam cylinders at opposite sides ofthe locomotive, the valves 8 and 9 being necessary to cut oil the How ofsteam to both sets of cylinders of the locomotive. In any type ofengine'where a portionof thesteam conduit 28 is directly accessible, asingle valve maybe employed 'for cutting off the steam from the boilerto the cylinders.

The valves 8' and l9, which are located at opposite sides of thelocomotive, are straightway shut off valves, but any othertype ofvalve'may be employed. These valves 8 and 9 are' providedv `with'Atransversely alined valve plugs having stems 30 and 31 detachablyconnected at their adjacent ends by a suitable Vcoupling 32 consistingof a socket and 'a removable coupling pin Aor key 33 and adapted topermit the valve stems to be separated when it is. desired to remove thevalve plugs. The socket of the coupling has a rectangular opening andthe vstem 31 'is squared to fit the same so that when the arm 25, whichis connected with the stem 30 is oscillated, the valve plugs will besimul` taneously actuated to open or closethe valves Sand 9. v l l Thesteam cylinderhas a steam chest 34 and is provided with upper and lowerfeed and exhaust passages 35 and 36, which are controlled by a slidevalve 37 adapted to connect the feed or inlet passage at one end of thecylinder with the' steam chest and the exhaust passage of the other endof the cyllinder with an exhaust chamber or escape 38, while closing theother passages. When' the slide valve is at the downward limit of' itstrayel, asillustrated in Fig. 3 of the drawf cylinder being maintainedin such` position by steam pressure, Steainfromthe boiler to thelocomotive is admitted to, the steam phest 34 byv a pipe 39 extendingfrom'the Y. upper end ofV the'steam chestl to the pipe 40,

" tain the necessary .pressure for operating.

the piston. When the slide valve is moved .ingS, the piston 4 is at thelower endfof the 'A from its lower position to its upper position,

steam is admitted'to the lower endet 'the cylinder 1 and the upper endof the cylinder the piston 4 is caused to travel upwardly, therebyoscillating the brake operating lever 7 and simultaneously transmittingmotion .is connected with the-exhaust'chamber end to the bell cranklever, which closes the valves and cuts off the supply of steam to thecylinders of the engine. u

The slide valve is connected with a def pendingrod or stem 41a,extending througha stuiing box 42- at the lowerend ofthe steam chest andguided in anarm 43 of ai, bracket 44 and yield'ably connected with theshoe 45 adapted to b`e' actuated by 'a track device 46. The slide valveis preferably supported in its 'lower position by a. set collar 47mounted on the valve rod or stem and arranged' to rest vupon the lowerend of the steam chest. The upper terminal portion 48 of the valve rodor stemis threaded and is secured'in openings of projecting ears '49,`of the slide valve by nuts 50. 'The supporting bracket consists of adepending armA provided at the upper end with an attaching .portion 51,.which is bolted or otherwise tion 52, extending below. the horizontalguide ,Y

arm 43 and bifurcated-to receive one end of vthe shoe 45, `which isconnectedto the bracket by a pivot 53. The'shoe, which is curvedlongitudinally to presenta lower convex surface', is provided at-a pointlintermediate of its endswith an upwardly projecting lug.

54, which is pivoted bya bolt orrivet 55 in the lower bifurcated'nd ofthe vertical sleeve 56, slidably mounted on the lower en d of thevalve-rod or stem 41 and receiving a coiled spring 57 interposed betweenthe shoe 'and the valve Stem tocushion the former and cylinder 6l isconnected at 'ranged in said nuts and the-lined messes rmotive tocontact with the track device 6 Without injury even when the train istraveling at a relatively high rate of speed. The

sleeve 56 is provided at opposite sides with longitudinal slots 58 intowhich extends the terminal portions of a 'transverse pin 59 piercing thevalve rod or stem and project-` ing from opposite sides thereof.

The track device s6 com rises a vertically movable plunger 60, providedat its upper `end with a. rounded transversely disposed head, andoperating in a vertical cylinder @6l having an 'attachmg'portion 6 2 atits lower end and suitably secured between the rails preferably at thecentral portion of the track, as illustrated in Fig. 2 of the drawings,but the track device and the cylinder l may be located at one side ofthe track so that a separate set of signals and track devices may bearranged at each side of a single track 'for controlling trainstraveling thereon in opposite directions. The vertical the bottom by apipe 63 With a suitable source of air supply, preferably the pipe lines,for operating a semaphore or other signal and when pres sure isintroduced into the lower end of the cylinder 6l, the plunger 60 isiorced upwardly to its elevated 'or engaging position in the path of theshoe e5. Vihen the ai .is exhausted, the plunger descends by gra ityassisted by coiled springs 64, mounted onA the lower portions of spacedvertical rods 63 secured at their uppeiends to the transverse head ofthe plunger GOand extending downvvardly therefrom through openings inhorivZontal guiding arms 6G, preferably formed integral with andextending' from opposite sides of the cylinder Gl at the upper portionthereof, as clearly illustrated in Fig. d or0 the drawings. The upperends of the slidable rods 65 are preferably threaded in perforations ofthe cross head of the plunger, and the lower terminals of the said rodare threaded for the reception or' nuts 67, ar-

pairs and-supporting the coiled which ar'e interposed between thehorizontal guiding arms 36'. The plunger 60 is provided at its lowerportion with suitable packing rings and in practice suction Willeffectually prevent the plungerfrom .being surreptitiously lifted byunauthorized persons when the air springs 6%,

is cut on, so that it will be impossiblelfor' such persons /to stop atrain by"1noving a trackfdevice from' its loiver toits 'elevated orengaging position. No claim is made 'in the present application to thetrack device.

vWhen the mechanism carried by a train eilgages and is operated by thetrack\device, the brakes are applied and the steam is cut oil from thecylinders of theengine,r and it is necessary after the train stops forthe en gineer to' descend from the cab and swing its? the shoedownwardly from its elevated position to its lowered position. Thischanges the position of the slide valve and admits Lsteam to the upperend of the cylinder l and exhausts steam from the lower end or thecylinder, thereby returning the .brake oper ating lever and the valves 8and 9 to their normal positions.- The valves 8 and 9, which. control thesupply of steam from the boiler tothe cylinder', are independent ol' thethrottle valve and are located interiorly oil the locomotive between thethrottle valve the cylinders ot the engine, and the said valves arebeyond the control ci the engineer' so that it is impossible for thelatter to int-er tere with the operation or the automatic train stop.instead of connecting the pipe line 39 with the pipe 'l0 or othersteam'supply pipe of the locomotive-it may be connected with the airtank and the piston e operated by compressed air. That is claimed is fl. In an automatic train stop, the combi? nation with a locomotive, ciasteani corr trolling valve mounted in the main steam conduit of thelocomotive at a point between the throttle valve and the cylinders forcute ting oli the steen a cylinder located beneath the locomotive andlhaving a piston, lever.

connections between the piston and the steam valve, a 'reciprocatoryvalve mounted on theA cutting on' the steam, a vertical cylinder locatedbeneath the locomotive and having a vertically movable piston,mechanical means for connecting the lpiston with the steam controllingvalve for actuating the-latter, a ver'- tically movable rcriprocatoryvalve mounted on the cylinder and having a depending stem, and a shoeconnected to the stein and arranged to actuated by a track device.' y

ln an automatic train stop, thefcombination with a locomotive havingai-niain s camlconduit lprovided with branches extcndillg to oppositesides of the locomotive, 'of steam controlling valves mounted in thesa'id Abranches and' located :it/points between the throttle valve randthe cylinders, said valves being provided with means extending acrossthe locomotive forl connecting them and causing the valves lto operatein unison, an arm connected .with one ofthe valves, a bell cranklever'fulcrumed at lits angle and having one oi' its arms connected tothe arm oi the valve, a cylinder having a piston connected.withv theother arm of the bell crank lavagna-.track device, and

ranged in the path ofand adapted to be actuated by the track device yforcontrolling lthe flow of fluid pressure to and last-mentioned cylinder.

, l. In an automatic` train stop, the combinationwith a locomotive, of asteam controlling valve mounted in the main steam 'f'cenduit of thelocomotive ata point beyond the4 throttle valve, avertical cylinder car-A riedby the locomotive and located beneath "the boiler and having apiston, a transverse lever fulcrumed atan intermediate point andconnected vatjits inner end Withthe piston,a bell crank lever arrangedat one slide of' the locomotive'and having an arm connected withthesteam controlling valve,

means for connecting lthecther' arm of thel bell lever' with the outerarm of the transverse lever, a track device, and means carried vby thelocomotive and arranged in the path of and adapted to be actuated by thetraclc device foricontrol-ling the. flow of fluid presentje,`to-and-'lrom theV cylinder.

5..In`nsauftomatic train stop, the combinationwitha locomotive, of asteam controlling valve" conduit of--the tive at a point beyond .thethrottle. ivalve-, a" cylinder located be-A neath the locomotive andhaving a piston ated by a track device.

6. In an automatic train stop, the combination with a locomotive, of asteam controlling valve mounted in the main steam conduit of thelocomotive at a point beyond the throttle valve, a cylinder locatedbeneath the locomotive and having a piston connected with the steamcontrolling valve for actuating the same, a reciprocatory valve mounted`on the cylinder and having a depending stem, a pivotally mounted shoel'ocated beneath the valve stem, and yieldaole means including acushioning spring for connecting the shoeto the rod lor stem.

7. In an automatic train stop, the combination with a locomotive, of asteam controlling valve mounted in the main steam conduit of thelocomotive at a point beyond the throttle valve, a vertical cylmderhavfroin theritedin' the main steamv ing avpiston connected with thesteam concylinder and provided lWith a depending stem, a bracket securedto and depending froxn `the cylinder, and a shoe pivotally mounted onthe bracket and connected to thestem, said'shoe being arranged to lbeactuated by a track device.

. 8. An automatic train stop including a vertical cylinder having apiston, a valve controlling the admission of fluid pressure tothecylinder, va vertical rod or stem connected with the valve, a bracketsecured to and depending from the cylinder and hav- .ing means forguiding the rod o r stem, and a shoe pivotall mounted on the bracketadapted to be actuated by a track device.

9. An automatic train stop including a;

` to the cylinder, a vertical rod or stem`connected with the valve, abracket secured to the lower end of the cylinder and provided :at anintermediate point with a horizontal guide arm receiving the rod orstem, Said bracket being also provided with a lower and connected Withthe rod or stem and supporting portion projecting below they said arm,and a shoe pivotedto the supporting portion and connected With'the rodor stem.

l0. `In an automatic train stop, the combination with a locomotive, of asteam controlling valve'mounted in the main steam conduit beyond thethrottle valve, acylinder having a vpiston operating in the cylinder andprovided with a piston rod, a pair'of v levers connected directly withand actuated by the piston rod, one ofthe levers being designed to beconnected with an air brake valve, means for connecting the other leverwith the steam controlling valve, a recipro' catory valve mounted on thecylinder and having a depending stem, and a shoe connected to the stemand arranged to be actuated by a track device.

In testimony, that I claim the foregoing as my own, I have hereto alixedmy signa. ture in the presenceof tWo Witnesses.

CHARLES A. EIB.

Witnessesr FREDERIC W. EIB,

4 JOSEPH A. 'HAY'1'ER, Jr.

